1# SPDX-License-Identifier: GPL-2.0 2# Copyright (c) 2019, Texas Instrument 3# Author: Jean-Jacques Hiblot <jjhiblot@ti.com> 4 5# Test U-Boot's "mmc write" command. The test generates random data, writes it 6# to the eMMC or SD card, then reads it back and performs a comparison. 7 8import pytest 9import u_boot_utils 10 11""" 12This test relies on boardenv_* to containing configuration values to define 13which MMC devices should be tested. For example: 14 15env__mmc_wr_configs = ( 16 { 17 "fixture_id": "emmc-boot0", 18 "is_emmc": True, 19 "devid": 1, 20 "partid": 1, 21 "sector": 0x10, 22 "count": 100, 23 "test_iterations": 50, 24 }, 25 { 26 "fixture_id": "emmc-boot1", 27 "is_emmc": True, 28 "devid": 1, 29 "partid": 2, 30 "sector": 0x10, 31 "count": 100, 32 "test_iterations": 50, 33 }, 34) 35 36""" 37 38@pytest.mark.buildconfigspec('cmd_mmc') 39@pytest.mark.buildconfigspec('cmd_memory') 40@pytest.mark.buildconfigspec('cmd_random') 41def test_mmc_wr(u_boot_console, env__mmc_wr_config): 42 """Test the "mmc write" command. 43 44 Args: 45 u_boot_console: A U-Boot console connection. 46 env__mmc_wr_config: The single MMC configuration on which 47 to run the test. See the file-level comment above for details 48 of the format. 49 50 Returns: 51 Nothing. 52 """ 53 54 is_emmc = env__mmc_wr_config['is_emmc'] 55 devid = env__mmc_wr_config['devid'] 56 partid = env__mmc_wr_config.get('partid', 0) 57 sector = env__mmc_wr_config.get('sector', 0) 58 count_sectors = env__mmc_wr_config.get('count', 1) 59 test_iterations = env__mmc_wr_config.get('test_iterations', 1) 60 61 62 count_bytes = count_sectors * 512 63 bcfg = u_boot_console.config.buildconfig 64 ram_base = u_boot_utils.find_ram_base(u_boot_console) 65 src_addr = '0x%08x' % ram_base 66 dst_addr = '0x%08x' % (ram_base + count_bytes) 67 68 69 for i in range(test_iterations): 70 # Generate random data 71 cmd = 'random %s %x' % (src_addr, count_bytes) 72 response = u_boot_console.run_command(cmd) 73 good_response = '%d bytes filled with random data' % (count_bytes) 74 assert good_response in response 75 76 # Select MMC device 77 cmd = 'mmc dev %d' % devid 78 if is_emmc: 79 cmd += ' %d' % partid 80 response = u_boot_console.run_command(cmd) 81 assert 'no card present' not in response 82 if is_emmc: 83 partid_response = "(part %d)" % partid 84 else: 85 partid_response = "" 86 good_response = 'mmc%d%s is current device' % (devid, partid_response) 87 assert good_response in response 88 89 # Write data 90 cmd = 'mmc write %s %x %x' % (src_addr, sector, count_sectors) 91 response = u_boot_console.run_command(cmd) 92 good_response = 'MMC write: dev # %d, block # %d, count %d ... %d blocks written: OK' % (devid, sector, count_sectors, count_sectors) 93 assert good_response in response 94 95 # Read data 96 cmd = 'mmc read %s %x %x' % (dst_addr, sector, count_sectors) 97 response = u_boot_console.run_command(cmd) 98 good_response = 'MMC read: dev # %d, block # %d, count %d ... %d blocks read: OK' % (devid, sector, count_sectors, count_sectors) 99 assert good_response in response 100 101 # Compare src and dst data 102 cmd = 'cmp.b %s %s %x' % (src_addr, dst_addr, count_bytes) 103 response = u_boot_console.run_command(cmd) 104 good_response = 'Total of %d byte(s) were the same' % (count_bytes) 105 assert good_response in response 106